Its county seat is San Antonio, the second-most populous city in Texas and the seventh-largest city in the United States. Bexar County is included in the San Antonio-New Braunfels, TX metropolitan statistical area. Bexar county includes Government Canyon state natural area in northwestern part of the county.
If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen.
These projectors are the least expensive, but the low output of light means that they have to be in a dark room. These projectors are best on smaller screens. 1,000 to 2,000 Lumens. This is a common lumen range and these projectors need to be in dimly lit rooms.